4.11 Electrical Diagram - REMEHA Calenta 25s Installation And Service Manual

4. Installation

4.11 Electrical diagram

X1 X2
1 3 2 1 2 3
BR BL
BL GN/
GN/YW
YW
BR
1 2 3
K1
SCU
L N
P
230V, 50Hz
X10
1 2 3 8 9 10 11
BK BK BL RD BK
BK
1 3 1 1 3 1
X113 X114 X115 X112
2 2 2
FS RTS FTS PS
Power supply
P
SCU Extended control PCB
On/Off switch
S
Ignition transformer
IT
Ignition power relay
E
Combined venturi and gas valve unit FTS
GB
3-way valve
DV
50
X3
4 5 3 2 1
BR
BL
BL
BR
GN/
YW
3 1
4 2
X51
S
4 5 7 6 12 13
BK BK
BK
BK BK
BK
BK
1 2
1 2 3 4
X111 X116
PSU PWM
2
PUMP
PUMP A Shunt pump
HLS
FAN
FS
RTS
PS
X5 X6
2 3 4 1 1 2 3
GN/
GY
YW
BK
BL WH
GN/ BL
YW
3 1 2 3 5
X22 X21
IT GB
E
X11
1 2 3 4 5 6 1 2 3 4 5 6
OR YW
WH RD
GY GN
OT
X2 X4
X1
SCU SCU
PSU Storage parameter
Safety thermostat OT
Fan
OS
Flow switch
WS
Return sensor
PC
Flow sensor
DIS
Pressure sensor
Calenta 25s - 28c - 35s - 40c
X7 X8
1 2 3 1 2 3
RD
GN/
WH
YW
BK
BR
BL
1 3 2 3 1 2
1
X41
X121
DV PUMP A
X12
7 8 9 1 0
OS WS
X3
X5
X6
X7
X8
X9
X10
X14
X13 X12
Thermostat
Outside sensor
DHW sensor
Connecting a computer
Display
X9
1 2 3 4 5
BK BK
BK
BK
BK
1 BK
1 2 4 5
X117 X91
2
FAN
HLS
X13 X14
1 1 10
1 10
PC
DIS
X11
T001047-G
040412 - 7600585-01